/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
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    Copyright (C) 2015-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.

Class
    Foam::CorrectPhi

Description
    Flux correction functions to ensure continuity.

    Required during start-up, restart, mesh-motion etc. when non-conservative
    fluxes may adversely affect the prediction-part of the solution algorithm
    (the part before the first pressure solution which would ensure continuity).
    This is particularly important for VoF and other multi-phase solver in
    which non-conservative fluxes cause unboundedness of the phase-fraction.

SourceFiles
    CorrectPhi.C

\*---------------------------------------------------------------------------*/

#ifndef CorrectPhi_H
#define CorrectPhi_H

#include "volFieldsFwd.H"
#include "surfaceFieldsFwd.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
    class pimpleControl;

    //- If the mesh is moving correct the velocity BCs on the moving walls to
    //  ensure the corrected fluxes and velocity are consistent
    void correctUphiBCs
    (
        volVectorField& U,
        surfaceScalarField& phi
    );

    //- If the mesh is moving correct the velocity BCs on the moving walls to
    //  ensure the corrected fluxes and velocity are consistent
    void correctUphiBCs
    (
        const volScalarField& rho,
        volVectorField& U,
        surfaceScalarField& phi
    );

    template<class RAUfType, class DivUType>
    void CorrectPhi
    (
        volVectorField& U,
        surfaceScalarField& phi,
        const volScalarField& p,
        const RAUfType& rAUf,
        const DivUType& divU,
        pimpleControl& pimple
    );

    template<class RAUfType, class DivRhoUType>
    void CorrectPhi
    (
        volVectorField& U,
        surfaceScalarField& phi,
        const volScalarField& p,
        const volScalarField& rho,
        const volScalarField& psi,
        const RAUfType& rAUf,
        const DivRhoUType& divRhoU,
        pimpleControl& pimple
    );
}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#ifdef NoRepository
    #include "CorrectPhi.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //
